14k Yellow Gold Small Birthstone Ring Charm with My Love Disk XM538-JN181. Available in every month, this small charm is 1/8" in size and features a synthetic gemstone. Inside measurement of the ring (the inner circle) is 5mm. Outside measurement is 1/4" x 3/8". April is a clear synthetic gemstone, June is a pinkish-purple to look like alexandrite, and October is a synthetic pink to look like pink tourmaline. It can be worn from a chain, or with a split ring on a charm bracelet.The ring hangs in front of a disk that says "my love" on the front.Shown on a chain, optional purchase: